About 70 percent of people have combination skin, which means that they have an oily T-zone and are normal to dry around their temples and on their cheeks. If you're one of those people, use a water-based moisturizer (water will be one of the first ingredients listed), and use it only where you need it. Just don't forget to apply a sunscreen all over your face!
Noncomedogenic moisturizers, which are water-based, are much less likely to clog pores than oil-based products. Other ingredients can cause irritation, like lanolin, propylene glycol and the lightener hydroquinone. If you tend to break out, look for a product that's hypoallergenic and dermatologist tested—the fewer ingredients, the less potential for problems. Many moisturizers are now formulated specifically for acne-prone complexions.